.el-table thead,
.el-table tr {
    color: #252525;
}

th.el-table__cell.is-leaf {
    background-color: #fafafa !important;
}

/* 设置伪类元素给表头创建竖线分割 */
.el-table__header-wrapper th:not(:nth-last-child(2))::after {
    content: "|";
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    color: #d9d9d9;
    /* 设定颜色 */
    display: flex;
    align-items: center;
    padding-right: 5px;
    /* 根据需要调整间距 */
}